Cluster VMs not accessible from other node hyper-v 2012 r2

I have implementing 3 node cluster using Windows server 2012 r2 hyper-v environment, Scenario as below....
3 HP server, every server 4 NIC`s, i made team using 4 NIC`s, and Cisco switch port configured as ether-channel and trunk port.
cluster up and running across all node, suddenly i have faced that i can`t access VM when its not on the same node from where i am accessing Cluster manager. but i can access that VM only if i log on that owned node via cluster manager.\
Please help.
Thanks
Shipon

Hi Shipon,
Your network configuration not meet the cluster network requirement,
Network adapters and cable (for network communication): The network hardware, like other components in the failover cluster solution, must be marked as "Certified for Windows
Server 2008 R2." If you use iSCSI, your network adapters should be dedicated to either network communication or iSCSI, not both.
In the network infrastructure that connects your cluster nodes, avoid having single points of failure. There are multiple ways of accomplishing this. You
can connect your cluster nodes by multiple, distinct networks. Alternatively, you can connect your cluster nodes with one network that is constructed with teamed network adapters, redundant switches, redundant routers, or similar hardware that removes single
points of failure.
The related KB:
Network Recommendations for a Hyper-V Cluster in Windows Server 2012
http://technet.microsoft.com/en-us/library/dn550728.aspx
Understanding Requirements for Failover Clusters
http://technet.microsoft.com/en-us/library/cc771404.aspx
I’m glad to be of help to you!
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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sauron666 wrote:
I already do that, because this is preprod, we prepare to switch prod 10g rac to this 11gr2 rac.
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11gr2 rac has 3 nodes. (2 nodes have same VIP as prod).Huh? That's not what I would call a good idea. Using the same IP addresses? What for? Why not re-use the hostnames instead?
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